Question: Who gave the{this taxon is the source of} of {higher taxon} of {Brassica rapa subvar. esculenta} ?
Paraphrase: Who gave the{this taxon is the source of} of {higher taxon} of {Brassica rapa subvar. esculenta} ?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q1494125 wdt:P171 ?X . ?X wdt:P1672 ?answer}
Answer: turnip, turnip greens, rapeseed acid